MP118 FXO/FXS Configuration

[mv114]

(This configuration is for analog service from site A to site B over customer network)

I have set these up before with little to no difficulty, with that said....

These are new Audiocodes, I have one mp118FXO and one mp118FXS. I have configured endpoint phone #s, routing table, and autodial table for both units. When calling from the FXS to FXO I get ring on FXO side with good talk path. However, when calling from FXO to FXS I get NO ring on FXS side but when I go off-hook talk path is established.

WHAT AM I MISSING?
Thanks in Advance.

 

[KCFLHRC]

I'm no Audiocodes expert, however. FXO and FXS is kinda standard industry stuff. So with that said, you should get ring voltage on the FXS side but no ringing on the FXO side. The FXS is the station side and the FXO is the trunk side.

 

[mv114]

KCFLHRC....

Understood, the FXO is running off an analog port on the pbx, cross-site to FXS location. From the FXS station we can call anyone on the PBX side with no problem. However when call from PBX side to FXS, we get no ring on FXS station.

 

[KCFLHRC]

Does the Audiocodes have a ring generator?